Apart from the ISS, yesterday evening I captured an Iridium satellite flare on camera – only the second time I managed this. The Iridium flares can be predicted to the second and I was not quite sure if this would appear behind or over the tree, but 30° elevation seem to be slightly above the maple. Those flares happen because the satellite is briefly illuminated by the sun, fading in for only a few seconds and then fading out again while travelling along at roughly the speed of the ISS. If you want to look for the ISS, Iridium flares and maybe other satellites appearing in the night sky, check out the excellent tracking site Heavens Above!